How to Do Flat Bench Lying Leg Raise
Start and end of one clean rep of Flat Bench Lying Leg Raise.
Quick facts
| Primary muscle | Core |
|---|---|
| Secondary muscles | — |
| Equipment | Bodyweight |
| Category | Strength |
How to perform Flat Bench Lying Leg Raise
- Lie with your back flat on a bench and your legs extended in front of you off the end.
- Place your hands either under your glutes with your palms down or by the sides holding on to the bench. This will be your starting position.
- As you keep your legs extended, straight as possible with your knees slightly bent but locked raise your legs until they make a 90-degree angle with the floor. Exhale as you perform this portion of the movement and hold the contraction at the top for a second.
- Now, as you inhale, slowly lower your legs back down to the starting position.
Muscles worked
- Core (primary): braces the trunk and resists twisting to protect the spine.
Sets & reps by goal
| Goal | Sets × reps | Load | Rest |
|---|---|---|---|
| Strength | 3–5 × 3–5 | Heavy (~85%+) | 2–3 min |
| Hypertrophy | 3–4 × 8–12 | Moderate (~65–75%) | 60–90 s |
| Endurance | 2–3 × 15–20 | Lighter (~50–60%) | 30–45 s |
Bodyweight movement: once you own the top of a rep range, progress by slowing the tempo, pausing at the hardest point, or moving to a harder variation instead of adding load.
Form tips
- Brace as if about to take a light punch and breathe shallowly — don't hold your breath for the whole set.
- Own the largest range you can control with clean form before you chase extra reps.
- Treat every rep the same — a repeatable setup and bar path is what lets you add weight safely over time.
- Control the lowering phase — a 2–3 second descent builds more than dropping the weight.
Common mistakes
- Cranking with the hip flexors or neck instead of moving from the trunk.
- Cutting the range short to squeeze out extra reps instead of owning each full one.
- Chasing weight jumps before the current load feels solid on every rep.
Frequently asked questions
What muscles does Flat Bench Lying Leg Raise work?
Flat Bench Lying Leg Raise is a focused movement that primarily works the core.
What equipment do I need for Flat Bench Lying Leg Raise?
None — Flat Bench Lying Leg Raise is a bodyweight movement, so you only need your bodyweight and a little space.
How many sets and reps should I do for Flat Bench Lying Leg Raise?
It depends on your goal: about 3–5 sets of 3–5 heavy reps for strength, 3–4 sets of 8–12 for muscle growth, or 2–3 sets of 15–20 for endurance. Bodyweight movement: once you own the top of a rep range, progress by slowing the tempo, pausing at the hardest point, or moving to a harder variation instead of adding load.
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